Subjects wife had become deceased 2 days earlier, and subject is still mourning greatly.

Subjects should be "Subject's", additionally, "become deceased" is rather awkward to read.

SHES STILL WITH YOU.

She's is the word you're looking for here, this is a reoccurring issue throughout the log.

Foreward: D-XXXX begins to cry, begging for the test session to end.

Foreward is typically only used before the interview, not during it.

your pretty nice…

This should be "you're".

Closing Statement: Tests showed that D-XXXX had lost all form of memory related to his spouse, and an extreme case of Chordoma had begun to form in his frontal lobe.

So there is some progression to the tumor forming, but since that isn't ever mentioned earlier in the article, this comes across as a bit strange to mention.

Overall, this isn't that interesting, to be honest. As it stands, it's just a generic magic object with no narrative support or purpose for its existence. The tone also isn't consistent and the spelling/grammar errors really detract from what is here. A couple questions I recommend you answer within this draft should you choose to rework this are as follows (of note, I'm not saying to answer all of these, but rather pick a few and develop a narrative within the draft while keeping them in mind):

Why was this object created?

What was its original purpose? Did it fulfill that purpose or not?

Who created this object?

How do people generally react to this object?

A couple of questions for you to keep in mind while writing are as follows: Why should the reader care about this object? What will be the thing that separates it from the almost 3000 other articles on the site?

Another route that could be taken with this would be to document the continued interactions between the D-Class used in testing and the object itself. How might their relationship progress? How does that affect the object and the D-Class? Of note, the present dialogue feels rather unnatural and I can't imagine this conversation actually occurring so I recommend reworking the log even if you decide not to pursue this option. Try reading the dialogue aloud to yourself and see if it feels forced or unnatural, that's usually a good indicator of what portions of the dialogue need to be reworked but for me it was these lines that came off as forced:

D-XXXX: Well, I guess you're right… y'know, for a tape recorder, your pretty nice…SCP-XXXX: WE ARE GOOOOOOOOOOOD FRIENDSD-XXXX: Haha, I guess we are buddy!

To my knowledge this idea hasn't been done before in this fashion, but in its current state, it's not all that engaging either.

As for the idea itself, I recommend you take it over to the Ideas and Brainstorming forum before you try to rework the article. Getting the concept fleshed out more and working out what direction you want to take this from a narrative standpoint beforehand will make the writing process go a lot smoother. I hope this helps, and good luck with your draft!